Iyini i-WBP plywood?

I-WBP plywoodiyi-plywood ye-veneer yezinga eliphezulu eyenziwe ngeglue elingangeni manzi. Ihlukile ku-plywood yasolwandle ngokwezidingo eziyisisekelo zokugunyazwa.
Embonini ye-plywood, igama elithi WBP limelela Isimo Sezulu Nokubilisa kunobufakazi Bokubilisa Amanzi.
Ukubilisa amanzi kwaba lula. Amabhodi amaningi e-plywood anenani elijwayelekile angadlula kalula amahora angu-4 wamanzi abilayo noma amahora angu-24 uma ibhodi licindezelwe kahle. Ukuvikela isimo sezulu kunzima kakhulu njengoba kudinga ukuthi i-plywood ibe manzi futhi yome ngezikhathi ezithile ukuze ilingise isimo sezulu semvula.
Isici esibaluleke kakhulu se-WBP plywood ukuvikela isimo sezulu. I-WBP plywood ibambelela kahle elangeni nasemvuleni.
I-WBP plywood eyenziwe nge-phenolic/melamine glue
I-plywood yakhiwe ngamashidi amathathu noma ngaphezulu amapulangwe amancane (abizwa ngokuthi ama-veneers) ahlanganiswe ndawonye, ​​​​ungqimba ngalunye lubekwe ema-engeli angakwesokudla kuya ohlamvu olulandelayo. I-plywood ngayinye yakhiwe inombolo eyinqaba yama-veneers. Ukuchanyuselwa okusanhlamvu kokhuni kwenza i-plywood ibe namandla kunamapulangwe futhi ingabi lula ukusonteka.
I-WBP plywood ingenye yezinhlobo ze-plywood ezihlala isikhathi eside. I-glue yayo ingaba i-melamine noma i-phenolic resin. Ukuze kubhekwe njengebanga langaphandle noma ibanga lasolwandle, i-plywood kufanele ikhiqizwe ngeglue ye-WBP. I-plywood ye-WBP engcono kakhulu kufanele yenziwe nge-phenolic glue.
I-WBP plywood eyenziwe nge-melamine evamile esikhundleni se-phenolic izobamba kuze kube yi-lamination amahora angu-4-8 emanzini abilayo. Iglue ye-melamine ephezulu ingamelana namanzi abilayo amahora angu-10-20. I-Premium phenolic glue ingamelana namanzi abilayo amahora angama-72. Kumele kuqashelwe ukuthi ubude besikhathi i-plywood ingamelana namanzi abilayo ngaphandle kwe-delamination nayo incike kwikhwalithi ye-plywood veneer.
I-WBP yakhelwe ukusetshenziswa ngaphandle
Imithombo eminingi ibiza i-WBP njengobufakazi bokubilisa kwamanzi, kodwa lokhu akulungile ngandlela thize. I-WBP empeleni ithuthukise izinga e-UK futhi icaciswe ku-British Standards Institution Standard 1203:1963, ekhomba izigaba ezine zeglue zeplywood ngokusekelwe ekuqineni kwazo.
I-WBP iyiglue ehlala isikhathi eside kakhulu ongayithola. Ngohlelo olwehlayo lokuqina, amanye amamaki eglue awakwazi ukupheka (BR); ukumelana nomswakama (MR); kanye nangaphakathi (INT). I-plywood ye-WBP eyenziwe kahle iyona kuphela i-plywood enconyelwe ukusetshenziswa ngaphandle, ngokusho kwe-Food and Agriculture Organization yeZizwe Ezihlangene. I-WBP plywood iklanyelwe ukusetshenziswa ngaphandle njengokwakhiwa kwendlu, izindawo zokukhosela kanye nesembozo, uphahla, ama-container floor, formwork kakhonkolo nokunye.
Iyini i-plywood engenamanzi?
Yize abantu belisebenzisa kakhulu leli gama, awekho amapulangwe angangeni manzi. "Ukungangeni kwamanzi" ngokuvamile kusho ukuthi i-plywood ine-phenolic bond ehlala njalo engeke yonakaliswe ezimeni ezimanzi. Lokhu ngeke kwenze i-plywood "ingabi namanzi" njengoba umswakama usazodlula emaphethelweni nasezindaweni ezingaphezulu zamapulangwe.